Displaying 11 results from an estimated 11 matches for "kb_read".
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xb_read
2013 Apr 05
0
DRBD + Remus High IO load frozen
...to support high
availability and checkpointing is controlled by remus for each 400ms.
If I check the Iostat I got the idle CPU will decreasing extremely each
checkpointing and when its reach 0% of idle cpu the local backing device
will freeze and damage the replication.
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
drbd1 0.00 0.00 0.00 0 0
avg-cpu: %user %nice %system %iowait %steal %idle
1.52 0.00 6.09 0.00 0.00 92.39
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
drbd1...
2020 Jul 03
2
Slow terminal response Centos 7.7 1908
...used. 26282624 avail Mem
**iostat**
[root at correo ~]# iostat -y 5
Linux 3.10.0-1062.12.1.el7.x86_64 (correo.binal.ac.pa) 07/03/2020
_x86_64_ (4 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0.05 0.00 0.05 0.05 0.00 99.85
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 0.00 0.00 0.00 0 0
dm-0 0.00 0.00 0.00 0 0
dm-1 0.00 0.00 0.00 0 0
avg-cpu: %user %nice %system %iowait %steal...
2020 Jul 03
1
Slow terminal response Centos 7.7 1908
...at -y 5
>> Linux 3.10.0-1062.12.1.el7.x86_64 (correo.binal.ac.pa) 07/03/2020
>> _x86_64_ (4 CPU)
>>
>> avg-cpu: %user %nice %system %iowait %steal %idle
>> 0.05 0.00 0.05 0.05 0.00 99.85
>>
>> Device: tps kB_read/s kB_wrtn/s kB_read
>kB_wrtn
>> sda 0.00 0.00 0.00 0
>0
>> dm-0 0.00 0.00 0.00 0
>0
>> dm-1 0.00 0.00 0.00 0
>0
>&g...
2020 Jul 03
0
Slow terminal response Centos 7.7 1908
...gt; [root at correo ~]# iostat -y 5
> Linux 3.10.0-1062.12.1.el7.x86_64 (correo.binal.ac.pa) 07/03/2020
> _x86_64_ (4 CPU)
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 0.05 0.00 0.05 0.05 0.00 99.85
>
> Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
> sda 0.00 0.00 0.00 0 0
> dm-0 0.00 0.00 0.00 0 0
> dm-1 0.00 0.00 0.00 0 0
>
> avg-cpu: %user %nice...
2016 May 25
6
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
...onds of iostat output, which illustrates the issue:
[root at r1k1log] # iostat 1 10
Linux 3.10.0-327.18.2.el7.x86_64 (r1k1) ? ?05/24/16 ? ?_x86_64_? ?(32 CPU)
avg-cpu:? %user? ?%nice %system %iowait? %steal? ?%idle
? ? ? ? ? ?8.80? ? 0.06? ? 1.89? ?14.79? ? 0.00? ?74.46
Device:? ? ? ? ? ? tps? ? kB_read/s? ? kB_wrtn/s? ? kB_read? ? kB_wrtn
sda? ? ? ? ? ? ? 52.59? ? ? 2033.16? ? ?10682.78 1210398902 6359779847
sdb? ? ? ? ? ? ? 52.46? ? ? 2031.25? ? ?10682.78 1209265338 6359779847
sdc? ? ? ? ? ? ? 52.40? ? ? 2033.21? ? ?10683.53 1210433924 6360229587
sdd? ? ? ? ? ? ? 52.22? ? ? 2031.16? ? ?10683.53...
2008 May 08
7
100% iowait in domU with no IO tasks.
Hi.
I entered one of our domU tonight and see following problem:
# iowait -k 5
avg-cpu: %user %nice %system %iowait %steal %idle
0.00 0.00 0.00 100.00 0.00 0.00
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda1 0.00 0.00 0.00 0 0
sda2 0.00 0.00 0.00 0 0
I check other domU and dom0 on same server - there were high iowait: from 20% to 50% with few transactions per second a...
2016 May 27
0
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
...g a write-intensive process.
Do the same write-heavy processes run on the other clusters, where you
aren't seeing performance issues?
> avg-cpu: %user %nice %system %iowait %steal %idle
> 9.24 0.00 1.32 20.02 0.00 69.42
>
> Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
> sda 50.00 512.00 20408.00 512 20408
> sdb 50.00 512.00 20408.00 512 20408
> sdc 48.00 512.00 19984.00 512 19984
> sdd 48.00...
2012 Feb 20
11
btrfs-convert processing time
Hi,
I''m trying to convert two ext4 FS to btrfs, but I''m surprised by the
time needed to do that conversion.
The first FS is on a 500GiB block device, and btrfs-convert is running
since more than 48h :
root 1978 25.6 47.7 748308 732556 ? D Feb18 944:44
btrfs-convert /dev/vg-backup/backup
The second is on a 340GiB block device, and the processing time is similar
2012 May 16
1
Very High Load on Dovecot 2 and Errors in mail.err.
...47516 635160 3489408 0 0 104 12 893 677 0 0 99 0
^C
# iostat -k
Linux 3.0.28-vs2.3.2.3-rol-em64t (mailstore4) 16.05.2012 _x86_64_ (24 CPU)
avg-cpu: %user %nice %system %iowait %steal %idle
0,08 0,00 0,09 0,34 0,00 99,49
Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
sda 67,35 636,28 1080,48 31337690 53215361
dm-0 73,53 591,55 893,93 29134837 44027496
dm-1 15,06 42,40 181,79 2088493 8953661
drbd1 51,21 316,06 277,94...
2016 May 27
2
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
...;
>Do the same write-heavy processes run on the other clusters, where you
>aren't seeing performance issues?
>
>> avg-cpu: %user %nice %system %iowait %steal %idle
>> 9.24 0.00 1.32 20.02 0.00 69.42
>>
>> Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
>> sda 50.00 512.00 20408.00 512 20408
>> sdb 50.00 512.00 20408.00 512 20408
>> sdc 48.00 512.00 19984.00 512 19984
>> sdd...
2016 Jun 01
0
Slow RAID Check/high %iowait during check after updgrade from CentOS 6.5 -> CentOS 7.2
...heavy processes run on the other clusters, where you
>>aren't seeing performance issues?
>>
>>> avg-cpu: %user %nice %system %iowait %steal %idle
>>> 9.24 0.00 1.32 20.02 0.00 69.42
>>>
>>> Device: tps kB_read/s kB_wrtn/s kB_read kB_wrtn
>>> sda 50.00 512.00 20408.00 512 20408
>>> sdb 50.00 512.00 20408.00 512 20408
>>> sdc 48.00 512.00 19984.00 512 19984
>>&g...